Eichaed paeke and heney goldbbbg



, UNITED STATES PATENT OFFICE.

RICHARD PARKE AN D HENRY GOLDBERG, OF NEYV YORK, N. Y.; SAID PARKEASSIGNOR TO SAID GOLDBERG AND ISAAC GOODMAN, OF SAME PLACE.

COMPOSITION FOR $122,

SPECIFICATION forming part of Letters Patent No. 283,652, dated August21, 1883,

Application filed July 5, I883. (No specimens.)

To all whom it may concern.-

Be it known that we, RICHARD PARKE and HENRY GOLDBERG, of N ew York, inthe county and State of New York, have invented a new and ImprovedComposition for Size, of which the following is a specification.

Our invention consists in making a composition for size free from theobjectionable features of ordinary sizing, of which glue is aningredient, and in which the glue decays and decomposes and gives riseto unpleasant and ofiensive odors.

Our composition consists of the following ingredients, combined in aboutthe proportions stated, viz: Gunrthus, one and one-half pounds; shellac,(bleached or shell,) three ounces; manilaguni, two ounces. Theseingredients are added to a solution of caustic soda, made by dissolvingone-fourth of a pound of the soda in about one gallon of water. The gumsare dissolved in the caustic soda. This solution is then filtered orstrained, and to it is or may be added raw linseed or other oil in theproportion of one gill of oil to one gallon of the solution.

Gum-thus is a soft gum, and least expensive. The other gums are added toit in order to make it harder, as, if it is too soft, it will when drybrush off, not having sufficient adhesive force to bind it to thesurface to which it has been applied. Caustic soda is used because it isa good solvent and is very inexpensive, while the oil is added toprevent the gum from becoming white in color when dry.

Instead of shellac and 'manila-guni, other water, substantially in th eproportions as speci- 2. A composition for size, consisting of gumythus, hard gum, caustic soda dissolved in wa ter, and of oil,substantially in the proportions as specified. RIGHABD PARKE. HENRYGOLDBERG. Witnesses:

J AMES TURK, WILLY G. E. SoHULTz.

